Question

If 1/(x+1) + 2/(x -3) = 4/(x - 5) then x equals to​

Answer 1

Answer:

Step-by-step explanation:

Given y = (x+1)(x+2)(x+3)(x+4)(x+5)

Differentiate w.r.t.x

dy/dx = (x+2)(x+3)(x+4)(x+5) + (x+1)(x+3)(x+4)(x+5) + (x+1)(x+2)(x+4)(x+5) + (x+1)(x+2)(x+3)(x+5) + (x+1)(x+2)(x+3)(x+4)

At x = 0

dy/dx = (2×3×4×5) + (1×3×4×5) + (1×2×4×5) + (1×2×3×5) + (1×2×3×4)

= 120 + 60 + 40 + 30 + 24

= 274